======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '256'
                                          'artist'  'Oscar Papa Celestin Jazz Band'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'St Louis  blues'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz'
                                             'bpm'  '144.3'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:iTunes_CDDB_1:eng'                            '0B0F9713+299529+19+150+14189+29121+44391+58540+75999+92091+107093+123596+142842+159872+173644+192089+205821+221223+241880+256908+272574+285661'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '9'
'TBPM' (BPM (beats per minute))                     '144.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz'
'TIT2' (Title/songname/content description)         'St Louis  blues'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Oscar Papa Celestin Jazz Band'
'TRCK' (Track number/Position in set)               '9'
'TXXX:MusicMagic Data'                              'AQEBWpvDhsGzVM8JgAG19EERgAGAroOeKVW0u+MwgMTc9YABgAEecMy1gAHuB6sShC+AAdBCrAvAwYABjTfE9jliEdzef6q7gAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.35 dB'
'TXXX:replaygain_track_peak'                        '0.344746'

========================== row from database ==========================
                                              'id'  1495333
                                            'path'  /data/Music/Other/Pa/Jazz/Oscar Papa Celestin/St Louis  blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  256
                                           'genre'  prerock-jb-jazz
                                        'filesize'  5142081
                                           'mtime'  1674606602
                                   'redo_metaread'  0
                                        'rest_str'   prerock jb jazz
                                      'tag_artist'  Oscar Papa Celestin Jazz Band
                                     'tag_release'  None
                                       'tag_title'  St Louis  blues
                                             'bpm'  144.3
                                    'search_title'  'blues':3 'louis':2 'st':1
                                   'search_artist'  'band':5 'celestin':3 'jazz':4 'oscar':1 'papa':2
                                  'search_release'  
                                     'search_rest'  'jazz':3 'jb':2 'prerock':1
                                    'search_combo'  'band':8B 'blues':3A 'celestin':6B 'jazz':7B,11 'jb':10 'louis':2A 'oscar':4B 'papa':5B 'prerock':9 'st':1A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1674606601.728419  (2023-01-25 01:30:01)
                             'size'  5142081